trillion

noun

tril·​lion ˈtri(l)-yən How to pronounce trillion (audio)
1
: a number equal to 1,000 times one billion see Table of Numbers
2
: an indeterminately large number
a trillion mosquitoes out tonight
trillion adjective
trillionth adjective or noun

Examples of trillion in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The Crown Prince has invested trillions of dollars in his grand mega projects intended to wean the kingdom off dependence on oil revenues. Karen Elliott House, Time, 10 July 2025 Streaming has unleashed trillions of songs and every one must be licensed and have royalties paid to the songwriter whenever any track is played in public. Bloomberg, Mercury News, 10 July 2025 The last thing America needs is another multitrillion-dollar tax cut vastly tilted toward the wealthy, especially one that adds trillions in debt and slashes support for society’s most vulnerable. Thomas Kahn, Chicago Tribune, 8 July 2025 The bill includes trillions of dollars in tax cuts, increased spending for immigration enforcement, and large cuts to funding for Medicaid and other social programs. Yun Li, CNBC, 8 July 2025 See All Example Sentences for trillion

Word History

Etymology

French, from tri- + -illion (as in million)

First Known Use

1690, in the meaning defined at sense 1

Time Traveler
The first known use of trillion was in 1690

Browse Nearby Words

Cite this Entry

“Trillion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trillion. Accessed 14 Jul. 2025.

Kids Definition

trillion

noun
tril·​lion ˈtril-yən How to pronounce trillion (audio)
1
: a number equal to 1,000 times one billion see number
2
: a very large number
a trillion mosquitoes out tonight
trillion adjective
trillionth adjective
trillionth noun

More from Merriam-Webster on trillion

Last Updated: - Updated example sentences
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